Point to point express (5)
I believe the answer is:
speak
'express' is the definition.
(I've seen this before)
'point to point' is the wordplay.
I cannot really see how this works, but
'point' could be 'peak' (peak is a kind of point) and 'peak' is present in the answer.
'to point' could be 's' (South) and 's' is located in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for speak that I've seen before include "express" , "give a lecture" , "Say something" , "Converse" , "Orate" .)